Should you put pie in fridge after they cool if you made them early

Using a refrigerator is not bad for your health, that's just absolute bull. You should refrigerate the pie if it will not be served within 24 hours, some pies this is more important than others. For example, a pie involving some form of cream (i.e. banana cream pie) should be refrigerated right away, because cream can spoil if not kept cold. A standard apple pie doesn't need to be refrigerated as badly.

There's nothing wrong with meringue pies. Now there is a possibility of eating one that has spoiled, but it's no more or less likely than any other food. My point is, there's nothing wrong with eating one at a restaurant.